warning: unused variable: `mats`
  --> src/main.rs:66:9
   |
66 |     let mats =
   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_mats`
   |
   = note: `#[warn(unused_variables)]` on by default

warning: use of `expect` followed by a function call
  --> src/bin/convert_to_png.rs:52:14
   |
52 |             .expect(format!("Couldnt create png file {:?}", pngname).as_ref());
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|_| panic!("Couldnt create png file {:?}", pngname))`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call

warning: use of `expect` followed by a function call
  --> src/bin/convert_to_png.rs:41:10
   |
41 |         .expect(format!("Couldnt open pix file {:?}", fname).as_ref());
   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `unwrap_or_else(|_| panic!("Couldnt open pix file {:?}", fname))`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#expect_fun_call
   = note: `#[warn(clippy::expect_fun_call)]` on by default

warning: field assignment outside of initializer for an instance created with Default::default()
   --> src/support/brender/model.rs:146:21
    |
146 |                     model.name = model_chunk.identifier;
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
note: consider initializing the variable with `support::brender::model::Model { name: model_chunk.identifier, ..Default::default() }` and removing relevant reassignments
   --> src/support/brender/model.rs:145:21
    |
145 |                     let mut model = Model::default();
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#field_reassign_with_default

warning: called `map(..).flatten()` on `Iterator`
  --> src/support/brender/model.rs:68:18
   |
68 |                   .map(|f| [f.v1, f.v2, f.v3])
   |  __________________^
69 | |                 .flatten()
   | |__________________________^ help: try replacing `map` with `flat_map` and remove the `.flatten()`: `flat_map(|f| [f.v1, f.v2, f.v3])`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#map_flatten
   = note: `#[warn(clippy::map_flatten)]` on by default

warning: field assignment outside of initializer for an instance created with Default::default()
   --> src/support/brender/material.rs:173:21
    |
173 |                     mat.material = material;
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^
    |
note: consider initializing the variable with `support::brender::material::Material { material: material, ..Default::default() }` and removing relevant reassignments
   --> src/support/brender/material.rs:172:21
    |
172 |                     let mut mat = Material::default();
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#field_reassign_with_default
    = note: `#[warn(clippy::field_reassign_with_default)]` on by default

warning: `Box::new(_)` of default value
   --> src/support/brender/actor.rs:106:35
    |
106 |                     actor.model = Box::new(Model::default()); //Models::find(model.identifier); // World::query<Model>?
    |                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `Box::<Model>::default()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#box_default
    = note: `#[warn(clippy::box_default)]` on by default

warning: returning the result of a `let` binding from a block
   --> src/support/brender/actor.rs:190:9
    |
189 |         let actor = stack.pop::<Actor>()?;
    |         ---------------------------------- unnecessary `let` binding
190 |         actor
    |         ^^^^^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#let_and_return
    = note: `#[warn(clippy::let_and_return)]` on by default
help: return the expression directly
    |
189 ~         
190 ~         stack.pop::<Actor>()?
    |

warning: `Vec<T>` is already on the heap, the boxing is unnecessary
  --> src/support/brender/actor.rs:66:15
   |
66 |     children: Vec<Box<Actor>>,
   |               ^^^^^^^^^^^^^^^ help: try: `Vec<Actor>`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#vec_box
   = note: `#[warn(clippy::vec_box)]` on by default